查询词典 planetary motion

With this angular momentum, according to the three laws of planetary motion proposed by Kepler, a certain amount of angular momentum will create a certain path of movement.

根据喀卜勒的行星三大定律，一定的角动量会产生一定的运动轨道。

It shows that the mathematical expressionof the stability parameter H?? of the flow of a power-law fluid in annulus with the innercylinder executing a planetary motion established in this paper, as well as the method ofnumerical calculation, is correct.

说明了本文建立的幂律流体在内管做行星运动的环空中流动的稳定性参数H′的数学表达式及数值计算方法的正确性。

Chapter 7. Make use of the unified field equation studied intrinsic magnetic field for planets, got that the magnetic induction equation is satisfied with the motion of planetary inside matter.

第七章 利用统一场方程研究了行星的固有磁场，也得到了行星内部物质运动所应满足的磁感应方程。

Research on the stability parameter of the flow of the non-Newtonian fluid in annulus withthe inner cylinder executing a planetary motion is of certain academic value and practicalengineering significance.

研究非Newton流体在内管做行星运动的环空中流动的稳定性参数具有学术理论和工程实际意义。

Newton invented calculus, gave the general formulation of the laws of mechanics that today carry his name, discovered the law of universal gravitation, solved the dynamical problem of planetary motion, invented the reflecting telescope, and made the first systematic investigations in optics and spectroscopy.

牛顿发明微积分；他赋予力学定律普遍公式，至今仍沿用他的名字来称呼；他发现万有引力定律，解答行星运动的动力学问题，发明反射望远镜，并且是首位有系统的探究光学与光谱学的人。

The kinematic equations of the flow of Newtonian fluid in annulus with the inner cylinder executing a planetary motion were transformed using undetermined coefficient method, and the calculation formula of pressure gradient of the flow was obtained with the given flow rate.

利用待定系数法对牛顿流体在内管做行星运动的环空中流动的运动方程进行了变换，得到了给定流量条件下牛顿流体在内管做行星运动的环空中流动的压力梯度计算公式。

The SEG's stators and rollers are magnetic components uniquely magnetized or imprinted with magnetic patterns and matched like a planetary gear. This magnetic arrangement along with the resulting radial currents from the Neodymium layer creates the roller's magnetomotive forces into motion at right angles to both the electric and magnetic vectors.

SEG的定子和转子是具有相反磁性的磁力部件，互相吸引起来就像一种行星齿轮，这种磁力装置通过金属钕涂层产生径向电流，这种电流产生的电场力和磁场力方向互相垂直，从而推动转子移动。

He and his team may, however, be pipped at the post. On August 6th America's space agency, NASA, announced that its Kepler planet-detector (named after the man who worked out the laws of planetary motion, as this article explains) is also behaving well.

然而梅尔博士和他的团队很有可能被击败。8月6日，美国航天局和美国宇航局，宣称其开普勒号行星探测仪（根据发现了行星移动定律的开普勒命名，点此可见详细介绍）现在运行得十分良好。

When I meet the engine with its train of cars moving off with planetary motion —— or, rather, like a comet, for the beholder knows not if with that velocity and with that direction it will ever revisit this system, since its orbit does not look like a returning curve —— with its steam cloud like a banner streaming behind in golden and silver wreaths, like many a downy cloud which I have seen, high in the heavens, unfolding its masses to the light —— as if this traveling demigod, this cloud-compeller, would ere long take the sunset sky for the livery of his train; when I hear the iron horse make the hills echo with his snort like thunder, shaking the earth with his feet, and breathing fire and smoke from his nostrils（what kind of winged horse or fiery dragon they will put into the new Mythology I don't know）, it seems as if the earth had got a race now worthy to inhabit it.

当我遇见那火车头，带了它的一列车厢，像行星运转似的移动前进，——或者说，像一颗扫帚星，因为既然那轨道不像一个会转回来的曲线，看到它的人也就不知道在这样的速度下，向这个方向驰去的火车，会不会再回到这轨道上来，——水蒸汽像一面旗帜，形成金银色的烟圈飘浮在后面，好像我看到过的高高在天空中的一团团绒毛般的白云，一大块一大块地展开，并放下豪光来，——好像这位旅行着的怪神，吐出了云霞，快要把夕阳映照着的天空作它的列车的号衣；那时我听到铁马吼声如雷，使山谷都响起回声，它的脚步踩得土地震动，它的鼻孔喷着火和黑烟（我不知道在新的神话中，人们会收进怎样的飞马或火龙），看来好像大地终于有了一个配得上住在地球上的新的种族了。

A new way of exchange between rotation and reciprocating motion through planetary driving was introduced, which was different from the one realized by piton pump moving with cam, brace and link.

采用行星齿轮传动方式实现从旋转到直线的往复运动，不同于现有柱塞泵由凸轮、曲柄连杆或斜盘实现往复运动的方式，没有滑靴等高压力作用下高速滑移的元件。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。